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20 Cards in this Set
- Front
- Back
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access technology
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Equipment, such as a computer mouse, that allows a student to use a computer program or that adapts the computer for a person with disabilities.
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accommodation
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Changes in the shape of the lens of the eye in order to focus on objects closer than 20 feet.
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braille
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A system using embossed characters in different combinations of six dots arranged in a cell that allows people with profound visual impairments to read by touch as well as to write by using special aids.
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case coordinator
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An educator who takes the lead on the child's multidisciplinary team. This person is generally for responsible for setting up the meetings, ensuring that all paperwork is completed, and sharing information about students' needs and progress with other team members
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ciliary muscles
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Muscles that control changes in the shape of the lens so the eye can focus on objects at varying distances
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convergence
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Change in the extrinsic muscles of the eye.
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cornea
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The transparent anterior portion of the tough outer coat of the eyeball.
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fading
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Gradually cutting back on help as a child becomes competent at a task.
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iris
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The colored muscular partition in the eye that expands and contracts to regulate the amount of light admitted through the pupil.
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legally blind
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An individual who can see a 20 feet an object that a person with normal sight can see at 200 feet. This definition of does not mean completely without vision.
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lens
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An elastic biconvex body that focuses onto the retina the light reflected from objects in the line of vision.
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low vision
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Visual acuity of 20/70 to 20/200. Students with this can still benefit from visual learning through the use of various technologies to enhance their sight.
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object permanence
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The understanding that objects that are not in the visual field still exist.
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orientation and mobility (O&M) training
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Teaching a person with visual loss or with blindness how to move through space.
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pupil
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The central opening of the eye through which light enters.
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retina
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The light-sensitive innermost layer of tissue at the back of the eyeball.
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retinopathy of prematurity
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A disease of the retina in which a mass of scar tissue forms in back of the lens of the eye. Both eyes are usually affected, and it accurs chiefly in infants born prematurely who receive excessive oxygen.
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sensory compensation
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The theory that if one sense avenue is deficient, other senses are automatically strengthened.
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synthetic speech
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The production of sound--of phonemes into words--by means of computer.
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visual impairment
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Any form of visual loss. These visual difficulties can include very moderate (such as the need for glasses) or a complete loss of vision.
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